Updating a Product List

[kwagz]

I am trying to update a Product with data that is read from SQL database. When i use code below it returns "Application error" error. I am coding this application in C#. Please help.

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ProductList pLookup;

pLookup = ACTAPP.ActFramework.Products.GetProducts(null);

pLookup[index].Name = ProductName;
pLookup[index].Price = ProductPrice;
pLookup[index].Cost = ProductCost;

newProduct.SetData(pLookup[index].Cost);
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I am coding in C#